Home / 389,561.24-584,375.16-136,819.71

Finding the Fourth Proportional to 389,561.24, 584,375.16 and 136,819.71

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Solution

The fourth proportional to 389,561.24, 584,375.16 and 136,819.71 is: 205,241.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,561.24 : 584,375.16 = 136,819.71 : x
  2. Step 2: Convert to fraction form
    389,561.24/584,375.16 = 136,819.71/x
  3. Step 3: Cross multiply
    389,561.24x = 584,375.16 × 136,819.71
  4. Step 4: Simplify right side
    389,561.24x = 79,954,039,922.40
  5. Step 5: Solve for x
    x = 79,954,039,922.40/389,561.24
  6. Step 6: Final answer
    x = 205,241.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.